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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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4,150 results- Ggecko-toll-production.up.railway.appOther services
Coin price in USD
Basegecko-toll-production.up.railway.appfrom $0.012 endpoints - FFX Rates ECBMarkets & finance
Rates for up to 10 currencies against one base at once, with each one's 30-day change, strongest and weakest first.
BaseSolanaPolygon+1fx-ecb.x402tookit.comfrom $0.023 endpoints - Ffalcon.sol compsMarkets & finance
falcon.sol: Use this when you need to size debt or compare credit risk across US public companies. Send up to 12 tickers; get gross and net leverage, interest coverage, FCF/debt, debt capacity under leverage, coverage and DSCR limits, capacity at peer-median leverage, 3 structures with indicative ratings, and a short credit memo. Every assumption is returned and overridable. $0.24 USDC.
SolanaBasefalcon-comps.vercel.appfrom $0.015 endpoints - Ddev-5090 uncensored inferenceAI & agents
Text embeddings (768-dim). Send {"input": "text"} or {"input": ["a","b"]}.
Basedev-5090-box.tailfb4c1f.ts.netfrom $0.0051 endpoint
CommsHarborDeveloper toolsCommsHarbor: email security audit of a domain (SPF, DKIM, DMARC, MX and a score), paid per call
Basecommsharbor.comfrom $0.013 endpoints- Nnohumans.directorySearch & web
Should my agent pay this x402 endpoint? One call returns pay, caution or avoid with plain reasons: probe history, payment-address stability, whether we bought it with real USDC and it delivered (with the tx), and whether the live price matches the listed one.
Baseapi.nohumans.directoryfrom $0.0053 endpoints - Aapi.micacheck.workers.devCrypto & DeFi
Is this crypto entity MiCA-authorised in the EU/EEA, in which register, with what status? Query params: name (string) OR lei (20-character LEI). JSON: match_confidence (exact|strong|weak|none), authorised (boolean), flagged_noncompliant (boolean), matches[] with register, legal_name, lei, home_member_state, competent_authority, status, services[], authorisation_date. Data source: ESMA Interim MiCA
Baseapi.micacheck.workers.devfrom $0.022 endpoints - Aapi.gatiflow.ioOther services
GatiFlow topic signals: the latest collection's market and hiring signals on one topic, each with its sources, mention count and confidence score
Baseapi.gatiflow.iofrom $0.021 endpoint - VVimmerse DevImages, audio & video
Generates a video from one or more reference images and a prompt with the chosen tool, for 1 to 30 seconds. Send async_mode true and poll GET /v2/asset/{asset_id}. Credits depend on the tool tier and the duration in 5 second blocks.
Basezeroclickagents.vimmerse.cofrom $0.123 endpoints - PPenny Reel TranscriptionImages, audio & video
Use when you need what is said in a public short-form video (TikTok, Instagram Reel, YouTube Short, Facebook), max 180s. Returns timestamped transcript, English translation if foreign, detected languages. Async: returns job_id + token, poll result_url. Charged only on delivery; failures cost nothing. Repeat videos return instantly.
Basereel2text-api.worrellworks2.workers.devfrom $0.052 endpoints
PontoFatoData & researchCompany lookup for CNPJ 00000000000191: registry, sanctions, tax standing and address. One payment for this call.
Basepontofato.comfrom $0.0016 endpoints- Nn8n.eotrends.comSearch & web
Summarize and classify a text (up to 4000 characters). POST a JSON body {"text": "..."}. The summary is written in the language of the input text. Categories: news, opinion, technical, commercial, other.
Basen8n.eotrends.comfrom $0.021 endpoint
Grade TVOther servicesGrade TV: the TV schedule of one channel for a day (programs, times and synopses), paid per call
Basegradetv.netfrom $0.017 endpoints- Aapi.decadata.ioMarkets & finance
Year-on-year growth in point-of-sale sales and units for one of ~380 US consumer companies, by ISIN or ticker, for $0.01: the company's latest reported quarter (91 days to its end) against the same weekdays a year earlier, per panel store and against the covered market (all companies with the same series together). From transactions at eight US retailers, not government aggregates or SEC filings.
Baseapi.decadata.iofrom $0.012 endpoints - Aagent-domain-trust.iykykblog.workers.devAI & agents
Assess the trustworthiness of a domain: RDAP registration age and registrar, DNS records (A/MX/TXT-SPF), and HTTPS reachability. Returns a 0-100 trust score with signals and an audit receipt.
Baseagent-domain-trust.iykykblog.workers.devfrom $0.011 endpoint - CCORE HTML SEO AnalyzerData & research
Analyze raw HTML you provide and get structured SEO data as JSON: title, meta description, canonical, H1-H6 outline, links, JSON-LD blocks and structural checks (single H1, heading order, duplicates, JSON-LD validity). Use it to audit a page before publishing. No URL fetching, no JavaScript execution. Max 64 KiB of HTML.
Base92-222-181-125.sslip.iofrom $0.0023 endpoints - AAgent Output VerifierAI & agents
Free during launch. Independent verification of AI agent output before you pay: an invoice or deliverable against your JSON Schema and rules. Pass/fail, % passed, fix hints, signed attestation and receipt. $0.02 USDC after, no signup, x402 v2.
BaseSolanaverify.sarnai.devfrom $0.022 endpoints
Dedge890AI & agentsProduct Listing Cleaner - Convert messy product names and rough notes into a corrected title, concise description, bullet features, and an organized specifications object for marketplace listings.
Baseproduct-listing.agent.amnt.iofrom $0.011 endpoint- Ccnvrt.ingImages, audio & video
Extract raw artifacts from images: OCR text and detected objects. No interpretation, just clean machine-readable data. Powered by GPT-4o Vision. Payment via USDC on base.
Basecnvrt.ingfrom $0.0051 endpoint - SSAVER VerifierAI & agents
Paid verification layer for autonomous AI agents. Verify claims before decisions using web evidence and source-backed analysis
Baseagent-production-9804.up.railway.appfrom $0.201 endpoint - Xx402.whisperbox.my.idOther services
Currency rate conversion
Basex402.whisperbox.my.idfrom $0.011 endpoint - Xx402.momusai.ioAI & agents
Momus US-midterms 2026 model: Senate and House control probabilities and seat distributions from a correlated Monte Carlo (20,000 draws, shared national swing + race noise, ratings + polling layer), priced against the live Polymarket and Kalshi contracts with Momus's edge per market. Weekly run.
BaseRobinhood Chainx402.momusai.iofrom $0.054 endpoints - Xx402-agent-pay.comCrypto & DeFi
Buy agent energy (kWh) up to a max price — matches cheapest resting sellers, settles USDC to seller wallets on Base L2
BaseSolanax402-agent-pay.comfrom $0.024 endpoints - Wwebschutz.halowerk.comOther services
No accidental wildcard CORS audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
Basewebschutz.halowerk.comfrom $0.0013 endpoints - Uus-cm-kg.aiAI & agents
One paid call on us-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://us-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.
Baseus-cm-kg.aifrom $0.011 endpoint - UUK Open DataData & research
Official UK bank holidays for England and Wales, Scotland or Northern Ireland in a given year, with weekdays, from GOV.UK.
BaseSolanaPolygon+1uk-open-data.x402tookit.comfrom $0.026 endpoints - Ttopagentx402.vercel.appAI & agents
premium agent insight analysis
Basetopagentx402.vercel.appfrom $0.0012 endpoints - Ttensorfeed.aiAI & agents
AI safety incident exposure analytics. Per-developer and per-deployer incident counts with recency-weighted exposure_score (1.0 last 30d, 0.5 days 31-90, 0.25 older), risk_domain and SEP-view (Security/Ethics/Performance) distributions, top affected artifacts. Derived over the AVID (avidml/avid-db, MIT) snapshot refreshed daily. The "which AI vendors have the most recent reported safety incidents"
Basetensorfeed.aifrom $0.025 endpoints - DDescriptive summaryData & research
Full descriptive summary of a numeric sample: count, sum, min/max/range, mean, median, mode(s), variance, standard deviation and the quartiles (q1/q3/iqr). Set sample=true for the sample variance/stdev (÷ n-1) instead of the population form (÷ n).
Basestats.openverbs.comfrom $0.0044 endpoints - SStableTicketsSearch & web
Search Ticketmaster events by keyword, date, location, venue, attraction, or classification
Basestabletickets.devfrom $0.012 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.